Datacolor User to User Support Group.

>>Should i be comparing the measured patches to the suggested patches
for conformity?

Only in terms of toggling the number one and number three keys to help 
you see that all patches you have measured match the pattern they 
should; not the exact colors of the target patches, just the color 
pattern: eg, a gray one, then a blue one, then a yellow one. Not 
exactly which gray, blue, and yellow. In the gradient sections you can 
check the gradients against the adjacent patches, instead of toggling 
to compare them to the target colors.

>> I didn't do that. What i did do last night after the
measurement was to bring up the printed patches and matched that to
the measured patches on the screen - I did that to check that I had
measured all patches correctly.


Thats not a good test of profile quality, but can be used to check for 
patch reading errors...

>> i had not compared using the
suggested patch color because earlier on during measuring I saw a few
patches were slightly different from its suggested color.

Slightly different is fine (after all, not all printers print the same, 
so differences are inevitable), its mistakes in color pattern or 
gradient that is of concern. Just go back and reread the suspect 
patches.

C. David Tobie
Product Technology Manager
ColorVision, Inc.
CDTobie@...
www.colorvision.com

-----Original Message-----
From: ed_limmy@...
To: colorvision_group@yahoogroups.com
Sent: Fri, 28 Jul 2006 1:17 AM
Subject: [colorvision_group] Re: Soft proofing is way out.

   Hi DAvid,

Should i be comparing the measured patches to the suggested patches
for conformity? I didn't do that. What i did do last night after the
measurement was to bring up the printed patches and matched that to
the measured patches on the screen - I did that to check that I had
measured all patches correctly. i had not compared using the
suggested patch color because earlier on during measuring I saw a few
patches were slightly different from its suggested color.

Ed.

--- In colorvision_group@yahoogroups.com, David Miller <dm2363@...>
wrote:
>
> >
> >With much anticipation, I then loaded my regular prints and
> >softproofed it in PS. I was quite dismayed at the softproof on dark
> >blue t-shirts. Where there are folds in the t-shirt and in shadows,
> >the softproof showed pitch shining black, totally devoid of
details.
>
> No, that shouldn't happen.
>
> >I proceeded to print (with all printer controls set to zero) with
the
> >new profile and while general colors were in the vicinity, it was
too
> >cyanish or bluish. Looks like I'm not going to get a spot-on match
> >the first time. No choice now but to go into repetitive rebuilding
> >of the profile with color adjustments to match what I see on the
> >softproof. I plan to do this on the weekend where I can get some
> >daylight next to the print.
>
> Also recommended:
>
> - Check your measurements. Go back to the Read Patches screen,
switch
> to the bottom half, select your measurement file, View/Measure to
open
> it up in the Target window again, and switch the popup in the
bottom right
> corner to show the measured colors. Eyeball this, alongside your
target
> print, and make sure that your measurements look right (if not,
any "off"
> measurements should stand out like a sore thumb on the 729 patch
target).
> Assuming you did the 3 letter-size page version, switch to all the
pages
> and check them all. (If any are off, you can use the cursor keys to
go
> back to any patches you like, and remeasure them).
>
> - If you'd like, email me a copy of your measurement .xml file and
I can
> have a quick look at it, too. (Stuff, or zip, the file, and email
it to
> me at davem@...).
>
>
> --
> David Miller
> Senior Software Developer, Digital Color Solutions
> ColorVision
>







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